Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!wuarchive!udel!haven!uvaarpa!rucs!rucs2!medlin From: medlin@rucs2.sunlab.cs.runet.edu (Roger Medlin) Newsgroups: comp.sys.apple2 Subject: DOS 3.3 Operating System & 3 1/2" Disks Message-ID: <1991Apr1.163903.28225@rucs2.sunlab.cs.runet.edu> Date: 1 Apr 91 16:39:03 GMT Distribution: na Organization: Radford University Lines: 18 Does anyone by chance have or know where I might obtain a copy of the Apple ][ DOS 3.3 Operating System which supports the use of 3 1/2" disks ? I have heard that while Apple Computer never provided such, there were those who modified the operating system themselves to allow DOS 3.3 commands, etc. to work on 3 1/2" disks, and thus allow those of us with UniDisk drives to port our software on 5 1/4" disks over to 3 1/2" disks. I have never had any trouble porting over programs on 5 1/4" to 3 1/2" which run under ProDOS, but my options appear limited with regard to my DOS 3.3 OS programs. I have heard of a couple of programs (Menu Master, etc.) which allow DOS 3.3 programs to run under the ProDOS enviroment, but I would prefer to find someone who has a copy of the modified DOS 3.3 operating system which allows the use of 3 1/2" disks. Please EMAIL me any comments, suggestions, etc. Thanks in advance. -Roger Medlin-